Sorry about that. I understand that for the toilet, I won't need to go below the slab at all, if I get something called a "back outlet toilet." Is this true too?

And if I wanted to get a regular toilet (say, a Toto Ultramax), then would I need to go deeper than the depth of the tub/shower drain, or are the specs for draining a toilet the same as the specs for draining a tub/shower? Thanks again!